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Journal of Chemistry
Volume 2015, Article ID 923894, 6 pages
http://dx.doi.org/10.1155/2015/923894
Research Article

Oleophobic Modification of Hollow Glass Microspheres and Its Effect on the Foaming Capacity and Stability of Foam Extinguishing Agent

1School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
2Fundamental Department, Chinese People’s Armed Police Academy, Langfang, Hebei 065000, China

Received 9 November 2014; Accepted 19 March 2015

Academic Editor: Guillaume Galliero

Copyright © 2015 Baohua Tang and Zhaoliang Wu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We utilized tridecafluorooctyltriethoxysilane (F8261) for the surface modification of hollow glass microspheres (HGM). We then measured the contact angles and the residing time of oil droplets on the HGM surface under different conditions and investigated the effects of the modifier concentration, reaction time and reaction temperature, and other factors on the outcomes of the modification reaction. We also compared the effects of HGM on the expansion ratio and 25% drainage time of protein foam liquid before and after the modification treatment and investigated the effects of HGM surface oleophobic modification on the foaming capacity and stability of foam extinguishing agent. The results showed that when the F8261 concentration was 1.0%, the temperature was 60°C, and the ultrasound treatment time was 2.0 h, the contact angle was up to 132.5°, the oleophobic property of HGM could be significantly enhanced, and the foaming capacity and the oil surface stability were significantly improved by the oleophobic modification.